Seiko Cal. 6639 - 738

Released in 1997, the Cal. 6639 with design code 738 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-dbcc59fccbd1]

Also known as: Shogun

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1997

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